关于嵌体的适应证下述各项中哪一项能成立
A.只用于后牙牙体缺损
B.只用于前牙牙体缺损
C.可用于前、后牙缺损
D.可常规用于固定桥冠外固位体
E.以上均正确
参考答案:C
Sarah, it is high time that you_______; or you won’t have time to______ before the party.
A.got up; get changed
B.get up; get changed
C.will get up; get changing
D.should get up; get to change
凸焊主要用于焊接()和低合金钢的冲压件。
A.超薄钢
B.低碳钢
C.氧化皮
D.硅钢